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FX Series Programmable Controllers Points of Technique 10
Chapter Contents
10.Points Of Technique...........................................................................10-1
10.1 Advanced Pro
g
rammin
g
Points .........................................................................10-1
10.2 Users of DC Powered FX Units .........................................................................10-1
10.3 Usin
g
The Forced RUN/STOP Fla
g
s.................................................................10-2
10.3.1 A RUN/STOP push button confi
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uration ................................................................. 10-2
10.3.2 Remote RUN/STOP control ....................................................................................10-3
10.4 Constant Scan Mode .........................................................................................10-4
10.5 Alternatin
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ON/OFF States................................................................................10-4
10.6 Usin
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Batter
y
Backed Devices For Maximum Advanta
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e ................................. 10-5
10.7 Indexin
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Throu
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h Multiple Displa
y
Data Values................................................ 10-5
10.8 Readin
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And Manipulatin
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Thumbwheel Data ..................................................10-6
10.9 Measurin
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a Hi
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h Speed Pulse Input ................................................................10-6
10.9.1 A 1 msec timer pulse measurement........................................................................ 10-6
10.9.2 A 0.1 msec timer pulse measurement..................................................................... 10-7
10.10Usin
g
The Execution Complete Fla
g
, M8029 ...................................................10-7
10.11Creatin
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a User Defined MTR Instruction .........................................................10-8
10.12An Example S
y
stem Application Usin
g
STL And IST Pro
g
ram Control............10-8
10.13Usin
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The PWM Instruction For Motor Control ...............................................10-15
10.14Communication Format................................................................................... 10-18
10.14.1Specification of the communication parameters:.................................................. 10-18
10.14.2Header and Terminator Characters...................................................................... 10-19
10.14.3Timin
g
dia
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rams for communications: .................................................................. 10-20
10.14.48 bit or 16 bit communications.............................................................................. 10-23
10.15PID pro
g
rammin
g
techniques .........................................................................10-24
10.15.1Keepin
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MV within a set ran
g
e............................................................................. 10-24
10.15.2Manual / Automatic chan
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e over .......................................................................... 10-24
10.15.3Usin
g
the PID alarm si
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nals ................................................................................. 10-25
10.15.4Other tips for PID pro
g
rammin
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............................................................................10-25
10.16Additional PID functions..................................................................................10-26
10.16.1Output Value ran
g
e control................................................................................... 10-26
10.17Pre-tunin
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operation .......................................................................................10-27
10.17.1Variable control.....................................................................................................10-27
10.18Example Autotunin
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pro
g
ram .........................................................................10-28